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Finding the Fourth Proportional to 219,238.48, 328,892.16 and 92,879.12

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Solution

The fourth proportional to 219,238.48, 328,892.16 and 92,879.12 is: 139,333.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,238.48 : 328,892.16 = 92,879.12 : x
  2. Step 2: Convert to fraction form
    219,238.48/328,892.16 = 92,879.12/x
  3. Step 3: Cross multiply
    219,238.48x = 328,892.16 × 92,879.12
  4. Step 4: Simplify right side
    219,238.48x = 30,547,214,395.70
  5. Step 5: Solve for x
    x = 30,547,214,395.70/219,238.48
  6. Step 6: Final answer
    x = 139,333.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.